JP6921820B2 - Transmitter - Google Patents

Description

This technique relates to transmission apparatus, in particular, for example, associated with the transmitting device to be able to improve the timeliness and flexibility of the alarm.

For example, in terrestrial digital television broadcasting such as ISDB-T (Integrated Services Digital Broadcasting-Terrestrial), it is stipulated that seismic motion warning information is transmitted by the AC (Auxiliary Channel) signal of the physical layer (for example, non-patent). See Document 1).

The transmission of seismic motion warning information using AC signals is not currently in operation due to reasons such as the need to change equipment.

"ARIB STD-B31 2.2 version", Association of Radio Industries and Businesses

Seismic ground motion warning information using AC signals is not flexible or expandable. That is, in the seismic motion warning information by the AC signal, for example, the area targeted for the seismic motion warning needs to be specified in a fixed unit such as a prefecture, and it is difficult to specify in another unit, for example, a municipality. be. Furthermore, the seismic motion warning information by the AC signal is composed of fixed-length bits, and all of the fixed bits as the seismic motion warning information are assigned predetermined elements, and a new element is added. That is difficult.

By the way, since the AC signal is the data of the physical layer and the data of the physical layer is the data with a small amount of data, the amount of data that can be assigned to the AC signal and, by extension, the seismic motion warning information is small. Therefore, it is difficult to give flexibility and expandability to the seismic motion warning information by the AC signal, which is the data of the physical layer.

On the other hand, in the upper layers above the physical layer (data link layer, network layer, transport layer, session layer, presentation layer, application layer of the OSI (Open Systems Interconnection) reference model), there are many more than the physical layer. Data can be transmitted.

Further, in Non-Patent Document 1, an activation flag for activating a receiving device is defined as data in the physical layer.

Therefore, for example, the seismic motion warning information is included in the data of the upper layer and transmitted, and the receiving device is activated by the activation flag, and the receiving device is made to process the seismic motion warning information included in the data of the upper layer. It is conceivable to give flexibility and expandability to the seismic motion warning information.

However, since it takes a certain amount of time for the receiving device to be activated in response to the activation flag of the physical layer and to be able to process the data of the upper layer, the seismic motion warning information is used as the data of the upper layer. If it is included in the transmission, it lacks immediacy.

In recent years, floods such as localized heavy rains and floods, and other disasters (including not only natural disasters caused by natural phenomena but also human disasters caused by human actions) have increased, and only earthquakes. Instead, the need for alerts for various disasters is increasing.

Furthermore, for example, some disasters such as floods may occur not in the entire prefecture but in some areas such as municipalities, prefectures, or multiple prefectures, and warnings for disasters are the areas covered by the warnings. It is desirable to be able to flexibly specify and issue.

The present technology has been made in view of such circumstances, and makes it possible to improve the immediacy and flexibility of alarms.

In the transmitter of this technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is provided by being included in the data of the upper layer above the physical layer. In the related table, a generation unit for generating transmission data including an index associated with predetermined processing-related information in the data of the physical layer and a transmission unit for transmitting the transmission data are provided . This is a transmission device in which the processing-related information is associated with an index and an area code representing an area in which the output processing should be performed according to the processing-related information.

In the transmission method of this technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is provided by being included in the data of the upper layer above the physical layer. In the related table, the index associated with the predetermined processing-related information is included in the data of the physical layer to generate the transmission data, and the transmission data is transmitted. In the related table, the index is included. This is a transmission method in which the processing-related information and an area code representing an area where the output processing should be performed according to the processing-related information are associated with each other.

In the transmission device and transmission method of the present technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is included in the data of the upper layer above the physical layer. In the related table provided in the above, transmission data including the index associated with the predetermined processing-related information in the data of the physical layer is generated and transmitted. In the related table, the index is associated with the processing-related information and an area code representing an area in which the output processing should be performed according to the processing-related information.

In the receiving device of this technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is provided by being included in the data of the upper layer higher than the physical layer. From the related table acquisition unit that acquires the related table, the receiving unit that receives the transmission data including the index associated with the predetermined processing-related information in the related table in the data of the physical layer, and the transmission data, the physical An index acquisition unit that acquires the index included in the layer data and a process that executes the output process according to the process-related information associated with the index included in the physical layer data in the related table. A receiving device including an execution unit, in which the index is associated with the processing-related information and an area code representing an area for performing the output processing according to the processing-related information. ..

In the receiving method of this technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is provided by being included in the data of the upper layer higher than the physical layer. Acquiring the related table, receiving the transmission data including the index associated with the predetermined processing-related information in the related table in the physical layer data, and converting the transmission data into the physical layer data. includes a obtaining said index contained, and performing the said corresponding to the processing-related information associated with the index included in the data of the physical layer in the context table output process, the associated In the table, the receiving method is such that the index is associated with the processing-related information and an area code representing an area in which the output processing should be performed according to the processing-related information.

In the receiving device and receiving method of this technology, processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and is included in the data of the upper layer above the physical layer. While the related table provided is acquired, transmission data including the index associated with the predetermined processing-related information in the related table in the physical layer data is received, and the transmission data of the physical layer is received. The index included in the data is acquired. Then, the output process is executed according to the process-related information associated with the index included in the data of the physical layer in the related table. In the related table, the index is associated with the processing-related information and an area code representing an area in which the output processing should be performed according to the processing-related information.

The transmitting device and the receiving device may be independent devices or may be internal blocks constituting one device.

Further, the transmitting device and the receiving device can be realized by causing a computer to execute a program. This program can be provided by transmitting via a transmission medium or by recording on a recording medium.

According to this technique, the immediacy and flexibility of alarms can be improved.

The effects described here are not necessarily limited, and may be any of the effects described in the present disclosure.

It is a block diagram which shows the structural example of one Embodiment of the transmission system to which this technique is applied. It is a block diagram which shows the configuration example of the transmission device 11. It is a figure which shows the OFDM segment of ISDB-T. It is a flowchart explaining the transmission process performed by the transmission device 11. It is a block diagram which shows the configuration example of the receiving device 12. It is a flowchart explaining the reception process performed by the receiving apparatus 12. It is a flowchart explaining the example of the processing index processing performed by the receiving apparatus 12. It is a figure which shows the example of the syntax of the processing index information including the processing index associated with the processing-related information related to the output processing which outputs an emergency alarm. It is a figure explaining EA_status. It is a figure explaining location_type. It is a figure which shows the correspondence relationship between the prefecture area code specified by JIS X 0401 and the prefecture represented by the prefecture area code. It is a figure explaining the expression of an area using a postal code. It is a figure explaining the representation of a region using latitude and longitude. It is a figure which shows the example of the syntax of the relation table in which the processing-related information related to the output processing which outputs an emergency alarm is registered. It is a figure which shows the example of the emergency alert information EA_message_data as the processing-related information. It is a flowchart explaining an example of the processing index processing performed on the processing index information for an emergency alarm table and an emergency alarm. It is a figure which shows another example of the syntax of the processing index information for an emergency alarm. It is a figure which shows another example of the syntax of the emergency alarm table as a related table. It is a flowchart explaining another example of the processing index processing performed on the processing index information for an emergency alarm table and an emergency alarm. It is a figure explaining the emergency alert signaling specified in ATSC3.0. It is a figure which shows the example of the syntax of the processing index information including the processing index associated with the processing-related information related to the setting process which sets a tuning. It is a figure which shows the example of the syntax of the related table in which the channel selection information is registered as the process-related information related to the setting process which sets the channel selection. It is a figure which shows the example of the relationship between a channel number and a (center) frequency of a channel. It is a figure explaining the example of a protocol. It is a figure explaining the example of packet_type. It is a figure explaining the example of layer_fft_size. It is a figure explaining the example of layer_mod. It is a figure explaining the example of layer_cod. It is a figure explaining the example of layer_gi. It is a figure which shows the example of the area code location_code as a processing index registered in a channel selection information table, and the channel selection information associated with the area code location_code. It is a flowchart explaining an example of the processing index processing performed on the tuning information table and the processing index information for tuning setting. It is a figure which shows the example of the signal format of TDM. It is a block diagram which shows the structural example of one Embodiment of the computer to which this technique is applied.

<One Embodiment of a transmission system to which this technology is applied>

FIG. 1 is a transmission system to which the present technology is applied (a system is a logical assembly of a plurality of devices, and it does not matter whether or not the devices having each configuration are in the same housing). It is a block diagram which shows the structural example of embodiment.

In FIG. 1, the transmission system includes a transmitting device 11, a receiving device 12, an output device 13, and a server 14.

The transmission device 11 transmits (broadcasts) (transmits), for example, a television broadcast program or the like. That is, the transmission device 11 uses, for example, program contents such as image data and audio data as target data to be transmitted, and performs transmission processing necessary for the target data. The transmission device 11 transmits the transmission data obtained by performing the transmission processing on the target data via, for example, a transmission line such as a satellite line, a terrestrial wave, or a cable (wired line).

The transmission data transmitted by the transmission device 11 includes processing indexes in addition to the contents of the program. In addition, the transmitted data will include related tables as needed.

Here, in the related table, processing-related information related to the processing on the receiving side, that is, the processing performed by the receiving device 12, is registered in association with the processing index. The processing index is an index associated with processing-related information.

The processing index is included in the physical layer data of the transmitted data. The related table is included in the data in the upper layer above the physical layer of the transmitted data, if necessary. The content of the program is the data of the application layer, but the related table can be included in the data of the application layer as well as the content of the program, or can be included in the data of other upper layers.

The receiving device 12 receives the transmission data transmitted from the transmitting device 11 via the transmission line, restores the content of the program included in the transmission data, and supplies the content to the output device 13.

Further, the receiving device 12 acquires a related table included in the data of the upper layer of the transmission data and a processing index included in the data of the physical layer of the transmission data, and uses the processing index included in the data of the physical layer in the related table. Performs processing according to the associated processing-related information (hereinafter, also referred to as related processing).

The output device 13 has a display for displaying an image and a speaker for outputting sound (sound), displays an image as content or the like from the receiving device 12, and outputs sound.

The server 14 is, for example, a web server, and if necessary, the related table is acquired from the transmission device 11 or the like. Further, the server 14 includes the related table in the data of the upper layer (for example, data such as HTTP (Hypertext Transfer Protocol)) and provides the related table to the receiving device 12 by communication via the Internet, if necessary.

As described above, the related table can be provided by being included in the data of the upper layer of the transmission data transmitted by the transmission device 11, and can also be provided by being included in the data of the upper layer from the server 14.

The receiving device 12 can acquire a related table included in the data of the upper layer and provided by the server 14 in addition to the related table provided in the data of the upper layer of the transmission data transmitted by the transmitting device 11. ..

The related table can be provided from both the transmitting device 11 and the server 14, or can be provided from only one of the transmitting device 11 and the server 14.

In the following, for the sake of simplicity, the related table will be provided to the receiving device 12 from, for example, the transmitting device 11 including the data in the upper layer of the transmitting data.

Here, the physical layer data and the upper layer data are also referred to as physical layer data and upper layer data, respectively.

<Configuration example of transmitter 11>

FIG. 2 is a block diagram showing a configuration example of the transmission device 11 of FIG.

In FIG. 2, the transmission device 11 is, for example, a transmission device using the transmission method of ISDB-T, and has an upper layer processing unit 21 and a physical layer processing unit 22.

Images, sounds, and the like of program contents are supplied to the upper layer processing unit 21.

The upper layer processing unit 21 performs upper layer processing for generating upper layer data in a format defined by the upper layer from images, sounds, and the like of program contents, and supplies the data to the physical layer processing unit 22.

That is, the upper layer processing unit 21 has an upper layer data generation unit 31 and a related table generation unit 32.

Images, sounds, and the like of program contents are supplied to the upper layer data generation unit 31, and related tables are supplied from the related table generation unit 32.

The upper layer data generation unit 31 encodes the image and sound of the program content, and generates the higher layer data including the encoded image and sound, and the related table from the related table generation unit 32. , Supply to the physical layer processing unit 22.

As the upper layer data, for example, a stream such as TS (Transport Stream) or TLV (Type Length Value) / MMT (MPEG Media Transport) can be adopted.

The related table generation unit 32 generates a related table in which the processing index and the processing related information are associated with each other, and supplies the related table to the upper layer data generation unit 31.

The physical layer processing unit 22 performs physical layer processing on the upper layer data from the upper layer processing unit 21, and transmits, for example, an OFDM (Orthogonal Frequency Division Multiplexing) signal as the transmission data obtained as a result.

That is, the physical layer processing unit 22 includes a control information generation unit 41, a transmission line coding unit 42, an IFFT (Inverse Fast Fourier Transform) calculation unit 43, a GI (Guard Interval) addition unit 44, and a transmission unit 45.

The control information generation unit 41 generates physical layer data as control information. For example, in ISDB-T, TMCC (Transmission and Multiplexing Configuration and Control) signals and AC signals are physical layer data as control information. In Non-Patent Document 1, the TMCC signal is treated as control information and the AC signal is treated as additional information. However, in the present specification, the TMCC signal and the AC signal are referred to as additional information for the sake of simplicity. Both are referred to as control information.

The control information generation unit 41 generates processing index information including the processing index associated with the predetermined processing-related information registered in the relation table generated by the relation table generation unit 32 as a part of the control information. do.

The control information generation unit 41 supplies the physical layer data as control information to the transmission line coding unit 42.

In addition to the control information being supplied from the control information generation unit 41 to the transmission line coding unit 42, the upper layer data is supplied from the upper layer processing unit 21 (the upper layer data generation unit 31).

The transmission line coding unit 42 applies predetermined transmission line coding to the upper layer data from the upper layer processing unit 21, and the control information from the control information generation unit 41 is further required for the upper layer data. Generate an OFDM frame with various pilot signals added as physical layer data.

Therefore, the transmission line coding unit 42 functions as an OFDM frame generation unit that generates an OFDM frame.

Here, for example, in ISDB-T transmission line coding, for example, error correction coding of upper layer data, mapping as subcarrier modulation (mapping of upper layer data on IQ constellation), frequency. Interleaving, time interleaving, addition of control information and pilot signals, etc. are performed, and 13 OFDM segments are constructed. Then, one OFDM frame is composed of the 13 OFDM segments.

After generating the OFDM frame, the transmission line coding unit 42 supplies the OFDM frame to the IFFT calculation unit 43.

The IFFT calculation unit 43 performs IFMT as a signal in the frequency domain, converts the OFDM frame supplied from the transmission path coding unit 42 into an OFDM frame in the time domain, and supplies the OFDM frame to the GI addition unit 44.

The GI addition unit 44 adds a GI having a length that is an integral fraction of the symbol length of the OFDM symbol to each OFDM symbol constituting the OFDM frame in the time domain from the IFFT calculation unit 43, and the OFDM as transmission data. A signal is configured and supplied to the transmission unit 45.

The transmission unit 45 performs frequency conversion of the transmission data from the GI addition unit 44, and transmits the OFDM signal as the transmission data after the frequency conversion.

FIG. 3 is a diagram showing an OFDM segment of ISDB-T.

ISDB-T defines three transmission modes, modes 1, 2, and 3, which have different OFDM subcarrier spacing. In ISDB-T, four modulation methods, QPSK (Quaternary Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), 64QAM, and DQPSK (Differential QPSK), are defined as subcarrier modulation methods.

FIG. 3 shows an OFDM segment in which the transmission mode is mode 1 and the modulation method is DQPSK.

In FIG. 3, the horizontal axis is a frequency axis representing a subcarrier number (carrier number). One horizontal line represents the OFDM symbol. The vertical axis is a time axis representing an OFDM symbol number (OFDM symbol number).

204 OFDM symbols make up one OFDM frame.

In FIG. 3, S _{i and j} represent the data symbol (carrier symbol) of the subcarrier modulated by the upper layer data, and the OFDM segment (OFDM frame) is the data symbol and CP (Continual Pilot) which is a pilot signal. , TMCC signal, and AC signal symbols (subcarriers) are added.

The transmission line coding unit 42 of FIG. 2 can generate, for example, an OFDM frame similar to the OFDM frame composed of the OFDM segment of FIG.

In this case, the processing index information can be included in the TMCC signal or AC signal as physical layer data.

FIG. 4 is a flowchart illustrating a transmission process performed by the transmission device 11 of FIG.

In the transmission process, an OFDM signal as transmission data is generated and transmitted.

Specifically, in step S11, the upper layer processing unit 21 generates upper layer data including related tables and the like, supplies the upper layer data to the physical layer processing unit 22, and the process proceeds to step S12.

That is, in the upper layer processing unit 21, the related table generation unit 32 generates a related table in which the processing index and the processing related information are associated with each other, and supplies the related table to the upper layer data generation unit 31.

The upper layer data generation unit 31 encodes the image and sound of the program content, and generates upper layer data including the encoded image and sound and the related table and the like from the related table generation unit 32. It is supplied to the physical layer processing unit 22.

In step S12, the control information generation unit 41 generates control information including the processing index information, and the process proceeds to step S13.

That is, the control information generation unit 41 generates the processing index information including the processing index associated with the predetermined processing-related information registered in the relation table generated by the relation table generation unit 32.

Further, the control information generation unit 41 generates, for example, control information (TMCC signal or AC signal) which is physical layer data, and includes processing index information as a part of the control information.

In step S13, the physical layer processing unit 22 adds control information, which is the physical layer data generated by the control information generation unit 41, to the upper layer data from the upper layer processing unit 21, and uses, for example, transmission data. The OFDM signal is generated, and the process proceeds to step S14.

That is, in the physical layer processing unit 22, the transmission line coding unit 42 is supplied with the upper layer data from the upper layer processing unit 21, and the control information which is the physical layer data generated by the control information generation unit 41. Is supplied.

The transmission line coding unit 42 applies predetermined transmission line coding to the upper layer data from the upper layer processing unit 21, and the control information from the control information generation unit 41 is further required for the upper layer data. Generate an OFDM frame with various pilot signals added as physical layer data. The OFDM frame is supplied from the transmission line coding unit 42 to the IFFT calculation unit 43.

The IFFT calculation unit 43 performs IFFT of the OFDM frame from the transmission line coding unit 42, obtains the OFDM frame in the time domain, and supplies it to the GI addition unit 44.

The GI addition unit 44 adds GI to each OFDM symbol constituting the OFDM frame in the time domain from the IFFT calculation unit 43 to form an OFDM signal as transmission data, and supplies the OFDM signal to the transmission unit 45.

In step S14, the transmission unit 45 performs frequency conversion of the transmission data from the GI addition unit 44, and transmits the OFDM signal as the transmission data after the frequency conversion.

In the transmission device 11, the above transmission process is repeated in the pipeline.

<Configuration example of receiving device 12>

FIG. 5 is a block diagram showing a configuration example of the receiving device 12 of FIG.

In FIG. 5, the receiving device 12 is, for example, a receiving device using the transmission method of ISDB-T, and includes a physical layer processing unit 51, an upper layer processing unit 52, a storage unit 53, a processing index information acquisition unit 54, and It has a processing execution unit 55.

The physical layer processing unit 51 functions as a receiving unit that receives the OFDM signal as transmission data transmitted from the transmission device 11, and processes the transmission data in the physical layer.

That is, the physical layer processing unit 51 includes a tuner 61, an ADC (Analog to Digital Converter) 62, an orthogonal demodulation unit 63, an FFT calculation unit 64, a control information acquisition unit 65, and a transmission line decoding unit 66.

The tuner 61 receives the OFDM signal as transmission data of a predetermined channel (frequency band) transmitted from the transmission device 11 and supplies it to the ADC 62.

The ADC 62 performs AD conversion of the OFDM signal as transmission data from the tuner 61 and supplies it to the orthogonal demodulation unit 63.

The orthogonal demodulation unit 63 performs orthogonal demodulation of the OFDM signal as transmission data from the ADC 62 and supplies it to the FFT calculation unit 64.

The FFT calculation unit 64 performs FFT using the OFDM signal from the orthogonal demodulation unit 63 as a signal in the time domain, converts it into an OFDM signal in the frequency domain, and causes the control information acquisition unit 65 and the transmission path decoding unit 66 to perform FFT. Supply.

The control information acquisition unit 65 acquires, for example, a TMCC signal or an AC signal as control information that is physical layer data from the OFDM signal from the FFT calculation unit 64, and processes the index information acquisition unit 54 and the transmission line decoding. Supply to unit 66.

The transmission line decoding unit 66 performs predetermined transmission line decoding on the OFDM signal from the FFT calculation unit 64 by using the control information supplied from the control information acquisition unit 65 as necessary, and restores the upper layer data. Then, it is supplied to the upper layer processing unit 52.

Here, for example, in ISDB-T transmission line decoding, for example, time deinterleaving, frequency deinterleaving, demapping as demodulation of subcarriers, error correction decoding, and the like are performed, and upper layer data is restored. The TMCC signal as control information includes, for example, information such as a modulation method of a subcarrier, and the transmission line decoding uses the TMCC signal as control information supplied from the control information acquisition unit 65 to the transmission line decoding unit 66. It is used as needed.

The upper layer processing unit 52 is composed of, for example, an SoC (System on Chip), and processes the upper layer on the upper layer data from the physical layer processing unit 51 (transmission path decoding unit 66).

That is, the upper layer processing unit 52 has a DEMUX 71 and an upper layer data processing unit 72.

Upper layer data from the physical layer processing unit 51 is supplied to the DEMUX 71.

The DEMUX 71 separates the encoded image and sound from the upper layer data from the physical layer processing unit 51 and supplies the encoded image and sound to the upper layer data processing unit 72.

Further, the DEMUX 71 acquires the related table from the upper layer data from the physical layer processing unit 51 by separating the related table, and supplies the data to the storage unit 53.

Therefore, the DEMUX 71 functions as a related table acquisition unit that acquires the related table.

The upper layer data processing unit 72 decodes the encoded image and sound from the DEMUX 71 and supplies them to the output device 13 (FIG. 1).

The storage unit 53 stores the related table supplied from the DEMUX 71.

The processing index information acquisition unit 54 acquires the processing index information included in the control information as physical layer data from the control information acquisition unit 65 and supplies it to the processing execution unit 55.

The processing execution unit 55 refers to the related table stored in the storage unit 53, and in the related table, displays the processing-related information associated with the processing index included in the processing index information from the processing index information acquisition unit 54. , Get as attention information. Then, the process execution unit 55 executes a process (related process) according to the information of interest.

Here, when the power of the receiving device 12 is turned off, the upper layer processing unit 52 that processes the upper layer higher than the physical layer is in the power off state, but the physical layer that processes the physical layer. The processing unit 51 does not turn off the power, and continues to execute at least the processing necessary for acquiring the control information.

Further, in the receiving device 12, the storage unit 53, the processing index information acquisition unit 54, and the processing execution unit 55 do not turn off and continue to operate.

Therefore, in the receiving device 12, the control information acquisition unit 65 acquires the control information that is the physical layer data, and the processing index information acquisition unit 54 obtains the control information that is the physical layer data even when the power is turned off. The included processing index information can be acquired. Further, the processing execution unit 55 refers to the processing-related information associated with the processing index included in the processing index information acquired by the processing index information acquisition unit 54 in the related table stored in the storage unit 53. It can be acquired as, and related processing can be executed according to the attention information.

FIG. 6 is a flowchart illustrating a reception process performed by the receiving device 12 of FIG.

In the reception process, the OFDM signal as transmission data is received, and the processing of the upper layer for acquiring the image and sound included in the upper layer data included in the OFDM signal is performed.

Specifically, in step S21, the physical layer processing unit 51 receives and demodulates the OFDM signal as the transmission data transmitted from the transmission device 11, and obtains the control information which is the physical layer data and the upper layer data. The acquisition proceeds to step S22.

That is, in the physical layer processing unit 51, the tuner 61 receives the OFDM signal as transmission data transmitted from the transmission device 11 and supplies it to the ADC 62. The ADC 62 performs AD conversion of the OFDM signal from the tuner 61 and supplies it to the orthogonal demodulation unit 63. The orthogonal demodulation unit 63 performs orthogonal demodulation of the OFDM signal from the ADC 62 and supplies it to the FFT calculation unit 64. The FFT calculation unit 64 performs FFT of the OFDM signal from the orthogonal demodulation unit 63, and supplies the OFDM signal after the FFT to the control information acquisition unit 65 and the transmission line decoding unit 66.

The control information acquisition unit 65 acquires control information which is physical layer data from the OFDM signal from the FFT calculation unit 64 and supplies it to the processing index information acquisition unit 54 and the transmission line decoding unit 66.

The transmission line decoding unit 66 restores the upper layer data by performing transmission line decoding on the OFDM signal from the FFT calculation unit 64 using the control information from the control information acquisition unit 65, and causes the upper layer processing unit 52 to restore the upper layer data. Supply.

In step S22, in the upper layer processing unit 52, the DEMUX 71 separates the encoded image and sound from the upper layer data from the physical layer processing unit 51 (transmission path decoding unit 66) and the related table. To get by.

Then, the DEMUX 71 supplies the encoded image and sound to the upper layer data processing unit 72 and supplies the related table to the storage unit 53, and the processing proceeds from step S22 to step S23.

In step S23, the storage unit 53 stores the related table supplied from DEMUX 71, and the process proceeds to step S24. That is, the storage unit 53 updates the stored contents to the related table supplied from the DEMUX 71. Therefore, when the storage unit 53 already stores the related table supplied from the DEMUX 71 in the past, the stored contents of the storage unit 53 are updated to the latest related table supplied from the DEMUX 71.

In step S24, the upper layer data processing unit 72 restores the original image and sound by performing processing such as decoding the image and sound after encoding from the DEMUX 71, and supplies the original image and sound to the output device 13 (FIG. 1). do.

In the receiving device 12, the above receiving process is repeated in the pipeline.

In the receiving device 12, all the receiving processing is performed when the power is turned on.

Further, in the receiving device 12, when the power is turned off, at least the processing of the physical layer data in the receiving processing is performed. That is, in step S21, the process of receiving and demodulating the OFDM signal as the transmission data transmitted from the transmission device 11, acquiring the control information which is the physical layer data, and supplying it to the processing index information acquisition unit 54 is performed. At least done.

FIG. 7 is a flowchart illustrating an example of processing index processing performed by the receiving device 12 of FIG.

In the processing index processing, the processing index information included in the control information which is the physical layer data of the transmission data is processed.

Specifically, in step S31, the processing index information acquisition unit 54 acquires the processing index information included in the control information from the control information acquisition unit 65 and supplies it to the processing execution unit 55, and the processing is performed in step S32. Proceed to.

In step S32, the processing execution unit 55 refers to the processing-related information associated with the processing index included in the processing index information from the processing index information acquisition unit 54 in the related table stored in the storage unit 53. And the process proceeds to step S33.

In step S33, the process execution unit 55 executes the related process according to the process-related information acquired as the attention information.

In the receiving device 12, the above processing index processing is repeatedly performed in the pipeline.

In the receiving device 12, even when the power is turned off, the storage unit 53, the processing index information acquisition unit 54, and the processing execution unit 55 continue to operate as described with reference to FIG. .. The processing index processing of FIG. 7 is a processing performed by the storage unit 53, the processing index information acquisition unit 54, and the processing execution unit 55, and therefore is performed even when the power of the receiving device 12 is turned off.

As described above, in the transmission device 11, the transmission data including the processing index information including the processing index associated with the predetermined processing-related information in the related table provided included in the upper layer data is generated in the physical layer data. Will be sent.

On the other hand, in the receiving device 12, while the related table provided by being included in the upper layer data is acquired, the physical layer data in the related table includes the processing index information including the processing index associated with the predetermined processing related information. The transmission data included in is received, and the processing index information (processing index included in) included in the physical layer data of the transmission data is acquired. Then, in the related table, the related processing corresponding to the processing-related information associated with the processing index included in the processing index information included in the physical layer data is executed.

Therefore, as related processing, immediacy, flexibility, and highly expandable processing can be easily performed.

That is, in the receiving device 12, the physical layer data of the transmission data is processed first, and even when the power of the receiving device 12 is turned off, it is processed, so that it is excellent in immediacy.

However, the amount of information transmitted including the physical layer data of the transmission data is generally small. For example, the maximum amount of information transmitted by the AC signal used for transmitting the seismic motion warning information specified in Non-Patent Document 1 is 204 bits. With such a small amount of information, it is difficult to perform a flexible and expandable process as a process for outputting a seismic motion warning.

On the other hand, according to the upper layer data of the transmission data, a large amount of information can be transmitted, and according to such a large amount of information, highly flexible and expandable processing can be easily performed.

That is, when transmitting the upper layer data including, for example, the seismic motion warning information, the seismic motion warning information can be easily changed and expanded, and as a result, the process of outputting the seismic motion warning is flexible and expanded. Can perform sexual processing.

However, when the SoC as the upper layer processing unit 52 that processes the upper layer data of the transmission data is started from the power off state by the start flag specified in ISDB-T, for example, it takes a certain amount of time to start. Needs.

Further, in the upper layer processing unit 52, the DEMUX 71 performs a filter process for separating various data from the upper layer data. Therefore, when the upper layer data includes the seismic motion warning information and is transmitted, there is a delay due to the filtering process in obtaining the seismic motion warning information from the upper layer data.

Therefore, it is difficult to ensure immediacy when transmitting the earthquake motion warning information including the seismic motion warning information in the upper layer data.

When the upper layer data includes the seismic motion warning information and is transmitted, a part of the signaling (information for) periodically arranged in the upper layer data can be used as the seismic motion warning information. However, in general, since the signaling cycle of the upper layer data is long, it is still difficult to ensure immediacy even when a part of the signaling of the upper layer data is used as the seismic motion warning information.

On the other hand, in the transmission system of FIG. 1, a related table in which processing-related information related to the processing performed by the receiving device 12 is associated with the processing index and registered is provided by being included in the upper layer data and received. As such, the device 12 acquires the related table provided by including it in the upper layer data.

The related table provided to be included in the upper layer data is not subject to such strict restrictions on the amount of information, and therefore, process-related information related to various processes (related processes) can be registered. Further, in the receiving device 12, the related table stored in the storage unit 53 is updated to the latest related table. As a result, highly flexible and expandable processing can be easily performed as the related processing according to the processing-related information registered in the related table.

Further, the transmission device 11 generates and transmits transmission data including the processing index information including the processing index in the physical layer data.

Then, the receiving device 12 receives the transmission data from the transmitting device 11, and acquires the processing index included in the processing index information included in the physical layer data of the transmission data. Further, the receiving device 12 responds to the processing-related information associated with the processing index acquired from the physical layer data of the transmission data in the related table acquired in advance from the upper layer data and stored in the storage unit 53. Related processing is executed.

The processing index (including processing index information) is included in the physical layer data of the transmission data, and the amount of information of the processing index information included in the physical layer data is as much as the related table is included in the upper layer data and transmitted. Can be reduced. As a result, the receiving device 12 can immediately acquire the processing index included in the physical layer data.

Therefore, the receiving device 12 can immediately execute the related processing according to the processing-related information associated with the processing index acquired from the physical layer data of the transmission data.

Hereinafter, as the related processing according to the processing-related information, for example, when the output processing for outputting an emergency alarm and the setting processing for setting the tuning are adopted as an example, the details of the related table and the processing index (information). Will be described.

<Example of processing index information including a related table in which processing-related information related to output processing that outputs an emergency alarm is registered and a processing index associated with the processing-related information>

FIG. 8 is a diagram showing an example of the syntax of the processing index information including the processing index associated with the processing-related information related to the output processing for outputting the emergency alarm.

Here, the processing index information including the processing index associated with the processing-related information related to the output processing for outputting the emergency alarm is also referred to as the processing index information for the emergency alarm.

In FIG. 8, the processing index information for the emergency alarm has 1 bit of EA_EXIST_FLAG. Further, the processing index information for the emergency alarm has an 8-bit version and an 8-bit NUM_EA_MESSAGE as needed.

The processing index information for emergency alarm has a set of 8-bit EA_code, 2-bit EA_status, 3-bit location_type, variable-length location_length, and variable-length location_code as many as the number represented by NUM_EA_MESSAGE.

EA_EXIST_FLAG is a flag indicating whether or not the information after EA_EXIST_FLAG exists in the processing index information for emergency alarm.

When EA_EXIST_FLAG indicates that the information in the latter stage exists, version and NUM_EA_MESSAGE are placed after EA_EXIST_FLAG.

version represents the version of the processing index information for the emergency alert. The version is incremented by 1, for example, each time the processing index information for an emergency alert is updated.

NUM_EA_MESSAGE represents the number of EA_codes as subsequent processing indexes to be placed.

After NUM_EA_MESSAGE, as many sets of EA_code, EA_status, location_type, location_length, and location_code as represented by NUM_EA_MESSAGE are repeatedly placed.

The EA_code is a processing index associated with the emergency alarm information representing the content of the emergency alarm as the processing-related information related to the output processing for outputting the emergency alarm. The EA_code is also hereinafter referred to as a disaster type code EA_code.

EA_status represents the status of the emergency alert.

location_type represents the type of location_code.

location_length represents the length (size) of location_code.

The location_code is a region code that represents an region to be output processed according to the emergency alert information as the processing-related information associated with the EA_code as the processing index that is set with the location_code.

For the processing index information for emergency alert, multiple types of location_codes with different expression methods are prepared. Multiple types of location_code will be described later.

Here, the binary number will be represented by the numerical value with b at the end.

FIG. 9 is a diagram illustrating the EA_status of FIG.

If EA_status is 0 (= 00b), it means that an emergency alert has been started. If the EA_status is 1 (= 01b), it means that the emergency alert is continuing, and if the EA_status is 2 (= 10b), it means that the emergency alert has ended. The EA_status with a value of 3 (= 11b) is reserved in the future.

FIG. 10 is a diagram illustrating the location_type of FIG.

When location_type is 0 (= 000b), it means that the target of the alarm is nationwide. If location_type is 0, then location_length and location_code are not placed (or even if they are, they are ignored by the receiving device 12).

When the location_type is 1 (= 001b), it means that the location_code represents the area with a predetermined code determined in advance, that is, for example, the prefecture area code defined by JIS X 0401. The correspondence between the prefecture area code and the prefecture represented by the prefecture area code can be preset in the receiving device 12, for example.

The prefecture code specified by JIS X 0401 is represented by 8 bits. Therefore, if location_type is 1, the size of location_code is fixed at 8 bits.

As described above, when location_type is 1, the size of location_code is uniquely 8 bits and does not change. Therefore, in the processing index information for emergency alert (Fig. 8), location_length indicating the size of location_code is , No need to place.

When location_type is 2 (= 010b), it means that location_code uses a zip code to represent the area.

The zip code is a 7-digit decimal number, and when location_code expresses the area using the zip code, the location_code is the decimal number as all or part of the zip code in BCD (Binary coded Decimal). The expressed value is set.

Here, according to BCD, each digit of the decimal number is represented by 4 bits.

Also, when expressing a region using all 7 digits of the zip code, the size of location_code is maximized.

Therefore, the maximum size of location_code that expresses an area using a zip code is 28 bits = 7 digits x 4 bits.

The maximum number of digits of the number represented by location_code, which expresses the area using the zip code, is 7 digits of the zip code, and 3 bits, which is the minimum number of bits that can express the 7 digits, is , Assigned to location_length. The 3-bit location_length is set to a value that represents the number of decimal digits as all or part of the postal code represented by location_code.

When location_type is 3 (= 011b), it means that location_code expresses the area using latitude and longitude.

In this case, for example, the latitude and longitude of two points are set in location_code, and such location_code represents a rectangular area whose diagonal lines are those two points.

As the latitude and longitude, for example, a 9-digit decimal number consisting of a 3-digit integer part and a 6-digit decimal part can be adopted at the maximum.

In location_code, the numerical value representing the decimal number as latitude and longitude in BCD is set.

Here, each of latitude and longitude is represented by a maximum of 9 decimal digits as described above, and therefore, the maximum size of location_code in which the numerical value represented by BCD is set is 144 bits = ((9). Digits x 4 bits) + (9 digits x 4 bits)) x 2 points.

In addition, 4 bits, which is the minimum number of bits capable of expressing 9, which is the maximum number of decimal digits for each of latitude and longitude, is assigned to location_length. The 4-bit location_length is set to a value that represents the number of decimal digits for each of the latitude and longitude set in location_code.

Location_types with values 4 (= 100b) to 7 (= 111b) are reserved in the future.

FIG. 11 is a diagram showing the correspondence between the prefecture area code defined by JIS X 0401 and the prefecture represented by the prefecture area code.

By presetting the correspondence between the prefecture area code shown in FIG. 11 and the prefecture in the receiving device 12, the area (prefecture) represented by the prefecture area code can be recognized in the receiving device 12.

FIG. 12 is a diagram for explaining the representation of the area using the postal code.

Seven-digit zip codes are set for town areas and skyscrapers.

The upper two digits of the 7-digit zip code represent (almost) prefectures, as shown in FIG. In addition, the upper 3 digits or the upper 5 digits of the 7-digit zip code represent the postal office that has jurisdiction. Since the area under the jurisdiction of the post office is fixed, the upper 3 or upper 5 digits of the postal code can be regarded as representing the area under the jurisdiction of the post office represented by the upper 3 or upper 5 digits.

If the upper three digits of the zip code represent the post office under the jurisdiction, the remaining lower four digits represent the town area (or skyscraper) town area number. If the upper 5 digits of the postal code represent the postal office under the jurisdiction, the remaining lower 2 digits represent the town area code.

For example, for a 7-digit zip code, the 7-digit zip code, the upper 2 digits, the upper 3 digits, and the upper 5 digits can be used for location_code.

FIG. 13 is a diagram for explaining the representation of the area using latitude and longitude.

When expressing a region using latitude and longitude, the latitude and longitude of two points are set in location_code. Such location_code represents a rectangular area whose diagonal is two points where latitude and longitude are set in the location_code.

As described above, as the area code location_code to be included in the processing index information for emergency alarm, the prefecture area code specified by JIS X 0401, zip code, latitude, longitude, etc. can be used depending on the location_type. Relatively large areas such as prefectures and regions, relatively small areas such as municipalities, and other areas of arbitrary size can be designated as necessary.

FIG. 14 is a diagram showing an example of the syntax of the related table in which the processing-related information related to the output processing for outputting the emergency alarm is registered.

That is, FIG. 14 shows an example of the syntax of the related table used when the processing index information of FIG. 8 is used.

Here, hereinafter, a related table in which processing-related information related to output processing for outputting an emergency alarm is registered is also referred to as an emergency alarm table.

In FIG. 14, the emergency alert table has an 8-bit table_id, an 8-bit version, an 8-bit length, and an 8-bit NUM_EA_INFO.

In addition, the emergency alert table has as many sets of 8-bit EA_codes, 16-bit EA_message_length, and 8 × EA_message_length bits as EA_message_data as represented by NUM_EA_INFO.

table_id represents an ID (Identification) attached to the emergency alert table.

version represents the version of the emergency alert table. The version is incremented by 1, for example, each time the emergency alert table is updated.

length represents the size (length) of the emergency alert table.

NUM_EA_INFO represents the number of EA_codes as subsequent processing indexes to be placed.

After NUM_EA_INFO, as many sets of EA_code, EA_message_length, and emergency alert information as represented by NUM_EA_INFO are repeatedly placed.

EA_message_length represents the length of the character string (the length of the emergency alert information) as the emergency alert information arranged after that.

EA_message_data represents the characters that make up the emergency alert information. The sequence of characters represented by EA_message_data, as many as the number represented by EA_message_length, is emergency alert information as processing-related information related to output processing that outputs an alarm.

Hereinafter, the sequence of characters represented by EA_message_data as many as the number represented by EA_message_length is also referred to as emergency alert information EA_message_data.

In the emergency alert table of FIG. 14, the disaster type code EA_code and EA_message_length as the processing index and the emergency as the processing-related information are contained in the for loop (for (i = 0; i <NUM_EA_INFO; i ++)) of the variable i. Alarm information EA_message_data is registered. That is, in the emergency alert table, the emergency alert information EA_message_data as the processing-related information is registered in association with the disaster type code EA_code as the processing index.

Here, assuming that the set of the disaster type code EA_code, EA_message_length, and the emergency alert information EA_message_data arranged in the for loop of the variable i is the disaster type information, NUM_EA_INFO is registered in the emergency alert table. Represents the number of disaster type information available.

FIG. 15 is a diagram showing an example of emergency alert information EA_message_data as processing-related information.

In FIG. 15, the emergency alert information EA_message_data is a message representing various alerts.

As shown in FIG. 15, for example, each emergency alert information EA_message_data is associated with a disaster type code EA_code having a different value.

In the transmission process (FIG. 4) by the transmission device 11 of FIG. 2, for example, the transmission data including the emergency alarm table of FIG. 14 in the upper layer data and the processing index information for the emergency alarm of FIG. 8 in the physical layer data is transmitted. Will be done.

In this case, in the reception process (FIG. 6) by the receiving device 12 of FIG. 5, when the power of the receiving device 12 is turned on, the DEMUX 71 acquires the emergency alarm table included in the upper layer data of the transmission data. , Is stored in the storage unit 53.

Further, in the receiving device 12 of FIG. 5, processing index processing is performed regardless of the state of the power supply.

FIG. 16 is a flowchart illustrating an example of processing index processing performed on the emergency alarm table and the processing index information for the emergency alarm.

That is, the flowchart of FIG. 16 shows an example of the processing index processing performed by the receiving device 12 with respect to the emergency alarm table of FIG. 14 and the processing index information for the emergency alarm of FIG.

In the processing index processing, in step S51, the processing index information acquisition unit 54 of the receiving device 12 (FIG. 5) acquires the processing index information for an emergency alarm included in the control information from the control information acquisition unit 65, and executes the processing. Supplying to the unit 55, the process proceeds to step S52. Here, step S51 corresponds to step S31 in FIG.

In step S52, the processing execution unit 55 of the receiving device 12 (FIG. 5) acquires the EA_EXIST_FLAG included in the processing index information (FIG. 8) for the emergency alarm from the processing index information acquisition unit 54. Further, in step S52, the processing execution unit 55 determines whether or not the EA_EXIST_FLAG acquired from the processing index information is 1 indicating whether or not the information after the EA_EXIST_FLAG exists.

If it is determined in step S52 that EA_EXIST_FLAG is not 1, that is, if EA_EXIST_FLAG is 0 and there is no information in the subsequent stage, the processing index process ends.

Further, in step S52, when it is determined that EA_EXIST_FLAG is 1, that is, when the information in the latter stage exists, the process proceeds to step S53.

In step S53, the processing execution unit 55 acquires all the location_codes included in the processing index information (FIG. 8) for the emergency alarm from the processing index information acquisition unit 54. Further, in step S53, the processing execution unit 55 determines whether or not the receiving device position, which is the current location of the receiving device 12, is included in the area represented by any location_code included in the processing index information for the emergency alarm.

Here, the processing execution unit 55 recognizes the receiving device position by an arbitrary method. As a method of recognizing the receiving device position, for example, at the time of initial setting of the receiving device 12, the user is input with information necessary for recognizing the receiving device position such as the postal code of the area including the receiving device position. There is a method of recognizing the position of the receiving device from the information received. Further, as a method of recognizing the position of the receiving device, for example, there is a method of mounting a GNSS (Global Navigation Satellite System) on the receiving device 12 and recognizing the position of the receiving device by using the GNSS.

The processing execution unit 55 recognizes the area represented by the location_code included in the processing index information for emergency alarm (FIG. 8) by using the location_type and location_length that are set with the location_code as necessary.

In step S53, if it is determined that the receiving device position is not included in the area represented by any location_code, that is, if the receiving device position is not included in the area subject to the emergency alert, the processing index process ends. do.

Further, in step S53, when it is determined that the receiving device position is included in the area represented by any location_code, that is, when the receiving device position is included in the area subject to the emergency alarm, the processing execution unit 55 , The location_code representing the area including the receiving device position is specified (stored) as the attention area code location_code, and the process proceeds to step S54.

In step S54, the processing execution unit 55 acquires the EA_status set with the region of interest code location_code from the processing index information (FIG. 8). Further, in step S54, the processing execution unit 55 determines whether or not the EA_status (FIG. 9) set with the attention area code location_code is 1 or 2 indicating the start or continuation of the emergency alarm.

If it is determined in step S54 that the EA_status is neither 1 nor 2, that is, if the emergency alarm has ended, the processing index process ends.

If it is determined in step S54 that the EA_status is either 1 or 2, that is, if the emergency alert has been started or is ongoing, the process proceeds to step S55.

In step S55, the processing execution unit 55 acquires the disaster type code EA_code as the processing index set with the attention area code location_code from the processing index information (FIG. 8) as the disaster type code EA_code of interest.

Further, in step S55, the processing execution unit 55 sets the attention disaster type code EA_code (corresponding to the disaster type code EA_code) as the processing index in the emergency alarm table (FIG. 14) stored in the storage unit 53 by the reception processing. The emergency alert information EA_message_data as the associated processing-related information is acquired as attention information. Here, step S55 corresponds to step S32 of FIG.

After that, the process proceeds from step S55 to step S56, and the process execution unit 55 executes an output process for outputting the emergency alert information EA_message_data as the attention information as the related process according to the process-related information acquired as the attention information. , Processing index processing ends.

As the output process for outputting the emergency alert information EA_message_data as the attention information, for example, a message display process for displaying the emergency alert information EA_message_data as the attention information on the output device 13 and a voice message output for outputting the emergency alert information EA_message_data to the output device 13 by voice. Processing is done.

Here, step S56 corresponds to step S33 in FIG.

FIG. 17 is a diagram showing another example of the syntax of the processing index information for the emergency alarm.

The processing index information for the emergency alarm in FIG. 17 has EA_EXIST_FLAG, version, NUM_EA_MESSAGE, EA_code, and EA_status.

Therefore, the processing index information for the emergency alarm in FIG. 17 is common to the case in FIG. 8 in that it has EA_EXIST_FLAG, version, NUM_EA_MESSAGE, EA_code, and EA_status.

However, the processing index information for emergency alarm in FIG. 17 has a set of location_type, location_length, and location_code in that it does not have a set of location_type, location_length, and location_code, that is, a region information representing an area to be output processed. It is different from the case of 8.

FIG. 18 is a diagram showing another example of the syntax of the emergency alert table as a related table.

That is, FIG. 18 shows an example of the syntax of the emergency alert table used when the processing index information of FIG. 17 is used.

The emergency alert table of FIG. 18 has table_id, version, length, NUM_EA_INFO, EA_code, location_type, location_length, location_code, EA_message_length, and EA_message_data.

Therefore, the emergency alert table of FIG. 18 is common to the case of FIG. 14 in that it has table_id, version, length, NUM_EA_INFO, EA_message_length, and EA_message_data.

However, the emergency alert table of FIG. 18 does not have a set of location_type, location_length, and location_code in that it newly has a set of location_type, location_length, and location_code, which are area information indicating an area to be output processed. Different from the case.

That is, in the emergency alert table of FIG. 18, the disaster type code EA_code as the processing index is registered in association with the emergency alert information EA_message_data as the processing-related information, and the output processing corresponding to the emergency alert information EA_message_data is registered. Area information including the area code location_code indicating the area where the operation should be performed is associated and registered.

When the processing index information for the emergency alarm of FIG. 17 and the emergency alarm table of FIG. 18 are used, in the transmission processing (FIG. 4) by the transmission device 11 of FIG. 2, for example, the emergency alarm table of FIG. 18 is used as upper layer data. The transmission data including the processing index information for the emergency alarm of FIG. 17 in the physical layer data is transmitted.

In this case, in the reception process (FIG. 6) by the receiving device 12 of FIG. 5, when the power of the receiving device 12 is turned on, the DEMUX 71 acquires the emergency alarm table included in the upper layer data of the transmission data. , Is stored in the storage unit 53.

Further, in the receiving device 12 of FIG. 5, processing index processing is performed regardless of the state of the power supply.

FIG. 19 is a flowchart illustrating another example of processing index processing performed on the emergency alarm table and processing index information for emergency alarm.

That is, the flowchart of FIG. 19 shows an example of the processing index processing performed by the receiving device 12 for the emergency alarm table of FIG. 18 and the processing index information for the emergency alarm of FIG.

In the processing index processing, in step S61, the processing index information acquisition unit 54 of the receiving device 12 (FIG. 5) is for an emergency alarm included in the control information from the control information acquisition unit 65, similarly to step S51 of FIG. The process index information is acquired and supplied to the process execution unit 55, and the process proceeds to step S62. Here, step S61 corresponds to step S31 in FIG.

In step S62, the processing execution unit 55 of the receiving device 12 (FIG. 5) acquires the EA_EXIST_FLAG included in the processing index information (FIG. 17) for the emergency alarm from the processing index information acquisition unit 54. Further, in step S62, the process execution unit 55 determines whether or not the EA_EXIST_FLAG acquired from the process index information is 1 indicating whether or not the information after the EA_EXIST_FLAG exists, as in step S52 of FIG. judge.

If it is determined in step S62 that EA_EXIST_FLAG is not 1, that is, if EA_EXIST_FLAG is 0 and there is no information in the subsequent stage, the processing index process ends.

Further, in step S62, if it is determined that EA_EXIST_FLAG is 1, that is, if the information in the latter stage exists, the process proceeds to step S63.

In step S63, the processing execution unit 55 acquires all the disaster type codes EA_code included in the processing index information (FIG. 17) for the emergency alarm from the processing index information acquisition unit 54. Further, in step S63, the processing execution unit 55 uses the location_code (hereinafter, EA_code) associated with the disaster type code EA_code (matching EA_code) acquired from the processing index information for the emergency alarm in the emergency alarm table (FIG. 18). , Also referred to as registered area code location_code), and the process proceeds to step S64.

In step S64, the processing execution unit 55 determines whether or not the receiving device position of the receiving device 12 is included in the area represented by any of the registered area codes location_code acquired in step S63.

In step S64, when it is determined that the receiving device position is not included in the area represented by any of the registered area codes location_code, that is, when the receiving device position is not included in the area subject to the emergency alert, the processing index. The process ends.

Further, in step S64, when it is determined that the receiving device position is included in the area represented by any of the registered area codes location_code, that is, when the receiving device position is included in the area subject to the emergency alert, the process is executed. In the emergency alarm table (FIG. 18), the unit 55 identifies (stores) the disaster type code EA_code to which the registered area code location_code representing the area including the receiving device position is associated as the attention disaster type code EA_code, and processes it. Proceeds to step S65.

In step S65, the processing execution unit 55 acquires the EA_status set with the attention disaster type code EA_code from the processing index information (FIG. 17). Further, in step S65, the processing execution unit 55 determines whether or not the EA_status (FIG. 9) set with the attention disaster type code EA_code is 1 or 2 indicating the start or continuation of the emergency alert.

If it is determined in step S65 that the EA_status is neither 1 nor 2, that is, if the emergency alarm has ended, the processing index process ends.

If it is determined in step S65 that the EA_status is either 1 or 2, that is, if the emergency alert has been started or is ongoing, the process proceeds to step S66.

In step S66, the processing execution unit 55 associates with the attention disaster type code EA_code (matching the disaster type code EA_code) as the processing index in the emergency alarm table (FIG. 18) stored in the storage unit 53 by the reception processing. The emergency alert information EA_message_data as the processing-related information that has been processed is acquired as attention information. Here, step S66 corresponds to step S32 of FIG.

After that, the process proceeds from step S66 to step S67, and the process execution unit 55 performs the emergency alarm information as the attention information as the related process according to the process-related information acquired as the attention information, as in the step S56 of FIG. The output process that outputs EA_message_data is executed, and the process index process ends. Here, step S67 corresponds to step S33 in FIG.

In the emergency alarm method using the emergency alarm table and the processing index information for the emergency alarm as described above, that is, in the transmission device 11, the emergency alarm table is included in the upper layer data, and the processing index information for the emergency alarm is included in the physical layer data. The transmission data included in the transmission data is transmitted, and the receiving device 12 acquires the emergency alarm table included in the upper layer data of the transmission data, while the emergency alarm table is associated with the processing index included in the physical layer data of the transmission data. According to the emergency alert method that issues an emergency alert by executing output processing that outputs the received emergency alert information EA_message_data, the emergency alert information EA_message_data associated with the disaster type code EA_code as the processing index is registered. By providing the alarm table by including it in the upper layer data, the flexibility and expandability of the emergency alarm can be improved, and the disaster type code EA_code as the processing index is provided by including it in the physical layer data. Can improve immediacy.

The emergency alert system that uses the emergency alert table and processing index information for emergency alerts is applicable to, for example, ISDB-T, DVB (Digital Video Broadcasting), ATSC (Advanced Television Systems Committee), and any other broadcasting system. can do.

For example, in ATSC3.0, Emergency Alert Signaling is specified in Annex G.

FIG. 20 is a diagram illustrating emergency alert signaling specified in ATSC 3.0.

FIG. 20A shows the structure of the ATSC 3.0 General physical layer frame and the boot slap.

In FIG. 20A, the bootstrap signal has a plurality of bootstrap symbols, and BootStrap_symbol_1 () and BootStrap_symbol_2 () are defined in the plurality of bootstrap symbols.

B in FIG. 20 shows the syntax of BootStrap_symbol_1 (), and C in FIG. 20 shows the syntax of BootStrap_symbol_2 ().

BootStrap_symbol_1 () contains 1 bit ea_wake_up_1 and BootStrap_symbol_2 () contains 1 bit ea_wake_up_2.

The two bits ea_wake_up_1 and ea_wake_up_2 are defined in Annex G of A / 331 as Wake-up Bits.

D in FIG. 20 shows the definition of the wakeup bit.

According to D of FIG. 20, as an emergency process, it is specified that the receiving devices (devices) are activated by setting (setting) 1, 2, and 3 in association with the wake-up bit.

An emergency alarm method using an emergency alarm table and processing index information for an emergency alarm can be applied to the emergency alarm signaling of ATSC 3.0 as described above.

That is, for example, by using the wakeup bit as the processing index and providing the wakeup bit as the processing index by including the emergency alarm table registered in association with the processing-related information in the upper layer data. In ATSC, as an output process for outputting an emergency alarm, it is possible to perform a process with high immediacy and flexibility.

<Example of processing index information including a related table in which processing-related information related to the setting process for setting tuning is registered and a processing index associated with the processing-related information>

FIG. 21 is a diagram showing an example of a syntax of processing index information including a processing index associated with processing-related information related to the setting process for setting tuning.

Here, the processing index information including the processing index associated with the processing-related information related to the setting processing for setting the tuning is also referred to as the processing index information for tuning setting.

In FIG. 21, the processing index information for tuning setting has a 1-bit location_exist_flag. Further, the processing index information for tuning setting has an 8-bit location_code as needed.

The location_exist_flag is a flag indicating whether or not the information after the location_exist_flag exists in the processing index information for tuning setting.

When location_exist_flag indicates that the information in the latter stage exists, location_code is placed after location_exist_flag.

The location_code is, for example, a region code representing the region, as in the case of the processing index information for the emergency alert of FIG. However, in the processing index information for tuning setting, the area code location_code is associated with the tuning information necessary (useful) for tuning setting as the processing-related information related to the setting processing for setting tuning. It is a processing index that is processed.

In the processing index information for tuning setting, the area code location_code is fixed to a predetermined type of code, that is, for example, the prefecture area code defined by JIS X 0401 described with reference to FIG. Therefore, the location_type and location_length are not (not necessary) arranged in the processing index information for tuning setting, unlike the processing index information for emergency alarm.

The area code location_code as the processing index included in the processing index information for tuning selection setting is set to a value representing the area in the reception area where the transmission data transmitted by the transmission device 11 can be received.

FIG. 22 is a diagram showing an example of the syntax of the related table in which the channel selection information is registered as the process-related information related to the setting process for setting the channel selection.

That is, FIG. 22 shows an example of the syntax of the related table used when the processing index information of FIG. 21 is used.

Here, hereinafter, a related table in which processing-related information related to the setting process for setting tuning is registered is also referred to as a tuning information table.

In FIG. 22, the channel selection information table has an 8-bit table_id, an 8-bit length, and an 8-bit NUM_TUNE_INFO.

In addition, the channel selection information table contains as many 8-bit area codes as the number represented by NUM_TUNE_INFO, 6-bit channel, 3-bit protocol, 3-bit packet_type, 2-bit layer_fft_size, 3-bit layer_mod, and 3-bit layer_cod. It has a set of 3-bit layer_gi, 8-bit message_length, and 8 × message_length bits of message_data.

In FIG. 22, channel, protocol, packet_type, layer_fft_size, layer_mod, layer_cod, layer_gi, and message_data are channel selection information.

table_id represents an ID (Identification) attached to the channel selection information table.

length represents the size (length) of the channel selection information table.

NUM_TUNE_INFO represents the number of region code location_codes to be placed afterwards.

Here, in the channel selection information table, channel selection information (channel, protocol, packet_type, layer_fft_size, layer_mod, layer_cod, layer_gi, message_data) as processing-related information is registered in association with the area code location_code as the processing index. NS. Therefore, NUM_TUNE_INFO represents the number of area codes location_code registered in the channel selection information table and also represents the number of channel selection information registered in the channel selection information table.

After NUM_TUNE_INFO, as many sets of area code location_code, channel selection information, and message_length as represented by NUM_TUNE_INFO are repeatedly placed.

The channel in the channel selection information represents the frequency and channel number of the channel that can be received in the area represented by the area code location_code that is set with the channel. Here, for example, in ISDB-T, 40 channels having channel numbers 13 to 52 are provided in the UHF band, and the (center) frequency of each channel and the channel number correspond uniquely. There is. Therefore, in ISDB-T, the channel frequency and the channel number are equivalent information.

The protocol in the channel selection information represents the protocol (broadcasting method) of the transmission data transmitted on the channel (of the channel number) represented by the channel set with the protocol.

The packet_type in the channel selection information represents the packet type of the packet that constitutes the upper layer data of the transmission data transmitted on the channel represented by the channel that is set with the packet_type.

The layer_fft_size in the channel selection information represents the FFT size when the OFDM signal as the transmission data transmitted on the channel represented by the channel set with the layer_fft_size is FFTed.

The layer_mod in the channel selection information represents the modulation method (Modulation) of the subcarrier of the OFDM signal as the transmission data transmitted on the channel represented by the channel set with the layer_mod.

The layer_cod in the channel selection information is the error correction code (error correction code) used for the error correction coding performed in the transmission path coding when generating the transmission data transmitted on the channel represented by the channel set with the layer_cod. Represents the FEC) code rate.

The layer_gi in the channel selection information represents the length (GI length) of the GI added to the OFDM signal as the transmission data transmitted on the channel represented by the channel set with the layer_gi.

The message_data in the channel selection information represents the characters constituting the message (hereinafter, also referred to as a channel message) related to the channel represented by the channel set with the message_data. In the channel selection information, the sequence of characters represented by message_data as many as the number represented by message_length is the channel message of the channel represented by the channel included in the channel selection information.

Hereinafter, the sequence of characters represented by message_data, which is the number represented by message_length, is also referred to as a channel message message_data.

message_length represents the length of the character string (channel message length) as the message_data to be placed after that.

In the channel selection information table of FIG. 22, the area code location_code and message_length as the processing index and the selection as the processing-related information are selected in the for loop (for (i = 0; i <NUM_TUNE_INFO; i ++)) of the variable i. Station information (channel, protocol, packet_type, layer_fft_size, layer_mod, layer_cod, layer_gi, message_data) is registered. That is, in the channel selection information table, the channel selection information as the processing-related information is registered in association with the area code location_code as the processing index.

FIG. 23 is a diagram showing an example of the relationship between the channel number and the (center) frequency of the channel.

Now, for channels, it is assumed that the channel number and the frequency are associated with each other as shown in FIG. 23, for example. When the channel number and the frequency are associated with each other, the channel number and the frequency can be set as the information for identifying the channel in the channel as the channel selection information in the channel selection information table (FIG. 22). ..

FIG. 24 is a diagram illustrating an example of a protocol as channel selection information in the channel selection information table (FIG. 22).

In FIG. 24, when the protocol is 0 (= 000b), it means that the broadcasting system of the transmitted data is the ISDB-T system. When the protocol is 1 (= 001b), it means that the broadcasting system of the transmitted data is the next-generation system of the ISDB-T system (ISDB-T2 system in FIG. 24).

Protocols with values 2 (= 10b) to 7 (= 111b) are reserved in the future.

FIG. 25 is a diagram illustrating an example of packet_type as channel selection information in the channel selection information table (FIG. 22).

In FIG. 25, when packet_type is 0 (= 000b), it means that the upper layer data of the transmission data is MPEG2-TS. When packet_type is 1 (= 001b), it means that the upper layer data of the transmission data is TLV / MMV.

Packet_types with values 2 (= 10b) to 7 (= 111b) are reserved in the future.

FIG. 26 is a diagram illustrating an example of layer_fft_size as channel selection information in the channel selection information table (FIG. 22).

In FIG. 26, when layer_fft_size is 0 (= 00b) to 2 (= 10b), it means that the FFT size is 8K, 16K, and 32K, respectively. In addition, 1K means 1024 points.

The layer_fft_size with a value of 3 (= 11b) is reserved in the future.

FIG. 27 is a diagram illustrating an example of layer_mod as channel selection information in the channel selection information table (FIG. 22).

In FIG. 27, when layer_mod is 0 (= 000b) to 5 (= 101b), the modulation method is QPSK, 16QAM, 64QAM, 256QAM-NUC (Non Uniform Constellation), 1024QAM-NUC, 4096QAM-NUC. , Represent each.

Layer_mods with values 6 (= 110b) and 7 (= 111b) are reserved in the future.

FIG. 28 is a diagram illustrating an example of layer_cod as channel selection information in the channel selection information table (FIG. 22).

In FIG. 28, when layer_cod is 0 (= 000b) to 4 (= 100b), the code rates are 1/2, 2/3, 3/4, 5/6, and 7/8, respectively. show.

Layer_cod with a value of 5 (= 101b) to 7 (= 111b) is reserved in the future.

FIG. 29 is a diagram illustrating an example of layer_gi as channel selection information in the channel selection information table (FIG. 22).

In FIG. 29, when layer_gi is 0 (= 000b) to 3 (= 011b), the GI length is 1/4, 1/8, 1/16, 1 / of the symbol length (effective symbol length) of the OFDM symbol. Each represents 32.

Layer_gi with a value of 4 (= 100b) to (= 111b) is reserved in the future.

FIG. 30 shows a region code location_code as a processing index registered in the channel selection information table and channel selection information (channel, protocol, packet_type, layer_fft_size, layer_mod, layer_cod, layer_gi, message_data) associated with the region code location_code. It is a figure which shows the example of.

In FIG. 30, for example, with respect to the area code location_code = 0 as the processing index, channel selection information (channel, protocol, packet_type,) for selecting a receivable channel in the area represented by the area code location_code = 0, As layer_fft_size, layer_mod, layer_cod, layer_gi, message_data), channel selection information for 4 channels (13,0,0,0,2,2,2, "Channel1"), (14,0,0,0,0) , 0, 1, "Channel2"), (15,1,1,2,3,3,2, "Channel3"), (16,1,1,2,3,4,3, "Channel4") It is associated.

In the transmission process (FIG. 4) by the transmission device 11 of FIG. 2, for example, the transmission data including the channel selection information table of FIG. 22 in the upper layer data and the processing index information for tuning setting of FIG. 21 in the physical layer data. Is sent.

In this case, in the reception process (FIG. 6) by the receiving device 12 of FIG. 5, when the power of the receiving device 12 is turned on, the DEMUX 71 acquires the channel selection information table included in the upper layer data of the transmission data. Is stored and stored in the storage unit 53.

Further, in the receiving device 12 of FIG. 5, processing index processing is performed regardless of the state of the power supply.

FIG. 31 is a flowchart illustrating an example of processing index processing performed on the tuning information table and the processing index information for tuning setting.

That is, the flowchart of FIG. 31 shows an example of the processing index processing performed by the receiving device 12 with respect to the tuning information table of FIG. 22 and the processing index information for tuning setting of FIG. 21.

In the processing index processing, in step S71, the processing index information acquisition unit 54 of the receiving device 12 (FIG. 5) acquires and processes the processing index information for channel selection setting included in the control information from the control information acquisition unit 65. Supplying to the execution unit 55, the process proceeds to step S72. Here, step S71 corresponds to step S31 in FIG.

In step S72, the processing execution unit 55 of the receiving device 12 (FIG. 5) acquires the location_exist_flag included in the processing index information (FIG. 21) for tuning selection setting from the processing index information acquisition unit 54. Further, in step S72, the processing execution unit 55 determines whether or not the location_exist_flag acquired from the processing index information is 1 indicating whether or not the information after the location_exist_flag exists.

If it is determined in step S72 that the location_exist_flag is not 1, that is, if the location_exist_flag is 0 and the information in the subsequent stage does not exist, the processing index process ends.

Further, in step S72, when it is determined that the location_exist_flag is 1, that is, when the area code location_code as the processing index which is the information in the latter stage exists, the process proceeds to step S73.

In step S73, the processing execution unit 55 acquires all of the area code location_codes as the processing indexes included in the processing index information as the area code of interest location_code.

Further, in step S73, the processing execution unit 55 corresponds to the region code of interest location_code (matching the region code location_code) as the processing index in the channel selection information table (FIG. 22) stored in the storage unit 53 by the reception processing. All of the channel selection information (channel, protocol, packet_type, layer_fft_size, layer_mod, layer_cod, layer_gi, message_data) as the attached processing-related information is acquired as attention information. Here, step S73 corresponds to step S32 of FIG.

After that, the processing proceeds from step S73 to step S74, and the processing execution unit 55 performs channel selection information (channel, protocol, packet_type, layer_fft_size, layer_fft_size, as related processing according to the processing-related information acquired as attention information. The setting process for setting channel selection is executed according to (layer_mod, layer_cod, layer_gi, message_data), and the process index process ends. Here, step S74 corresponds to step S33 in FIG.

The channel selection setting method using the channel selection information table and the processing index information for channel selection setting as described above, that is, in the transmission device 11, the channel selection information table is included in the upper layer data and the processing index for channel selection setting is included. The transmission data including the information in the physical layer data is transmitted, and the receiving device 12 acquires the channel selection information table included in the upper layer data of the transmission data, while the channel selection information table is used as the physical layer data of the transmission data. According to the channel selection setting method for setting channel selection by executing the setting process according to the channel selection information associated with the included processing index, the receiver 12 includes the selection provided in the upper layer data. After the station information table is acquired, by receiving the area code location_code as the processing index provided in the physical layer data, the channel selection processing can be performed for the channels that can be received at the position of the receiving device 12. Since it is performed, it is possible to easily set the channel selection.

Further, when the receiving device 12 moves, the channel selection processing is performed for the channel that can be received at the position of the moving destination of the receiving device 12, so that the channel that can be received at the moving destination of the receiving device 12 is selected. It is possible to prevent the viewing of the program from being interrupted for a long time due to the scanning being performed.

Further, for example, when the transmission parameter of broadcasting on the receivable channel at the position of the receiving device 12 is updated (changed), the receiving device 12 acquires a channel selection information table reflecting the updated transmission parameter. By doing so, it is possible to easily deal with the update of the transmission parameter.

In the present embodiment, the OFDM signal is adopted as the transmission data transmitted from the transmission device 11 to the reception device 12, but as the transmission data, for example, an FDM (Frequency Division Multiplexing) signal other than OFDM is used. , TDM (Time division Multiplexing) signals can be adopted.

FIG. 32 is a diagram showing an example of a TDM signal format.

In FIG. 32, the TDM signal is composed of a frame in which a preamble and a payload are arranged in that order.

In FIG. 32, the preamble is composed of 1200 bits, some of which are allocated to L1 data and the remaining bits are reserved bits for the future.

Image and audio data (AV Contents) and the like are arranged in the payload.

The preamble is the physical layer data, and the data placed in the payload is the upper layer data.

When the above TDM signal is adopted as transmission data, the processing index information is provided by including it in the reserved bit of the preamble which is the physical layer data, and the related table is included in the payload which is the upper layer data. Can be provided.

<Explanation of computer to which this technology is applied>

Next, at least a part of the above-mentioned series of processes can be performed by hardware or software. When a series of processes is performed by software, the programs constituting the software are installed on a general-purpose computer or the like.

FIG. 33 is a block diagram showing a configuration example of an embodiment of a computer in which a program for executing the above-mentioned series of processes is installed.

The program can be recorded in advance on the hard disk 105 or ROM 103 as a recording medium built in the computer.

Alternatively, the program can be stored (recorded) in the removable recording medium 111. Such a removable recording medium 111 can be provided as so-called package software. Here, examples of the removable recording medium 111 include a flexible disc, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto Optical) disc, a DVD (Digital Versatile Disc), a magnetic disc, and a semiconductor memory.

The program can be installed on the computer from the removable recording medium 111 as described above, or can be downloaded to the computer via a communication network or a broadcasting network and installed on the built-in hard disk 105. That is, for example, the program transfers wirelessly from a download site to a computer via an artificial satellite for digital satellite broadcasting, or transfers to a computer by wire via a network such as LAN (Local Area Network) or the Internet. be able to.

The computer has a built-in CPU (Central Processing Unit) 102, and the input / output interface 110 is connected to the CPU 102 via the bus 101.

When a command is input by the user by operating the input unit 107 or the like via the input / output interface 110, the CPU 102 executes a program stored in the ROM (Read Only Memory) 103 accordingly. .. Alternatively, the CPU 102 loads the program stored in the hard disk 105 into the RAM (Random Access Memory) 104 and executes it.

As a result, the CPU 102 performs a process according to the above-mentioned flowchart or a process performed according to the above-mentioned block diagram configuration. Then, the CPU 102 outputs the processing result from the output unit 106, transmits it from the communication unit 108, or records it on the hard disk 105, if necessary, via the input / output interface 110, for example.

The input unit 107 is composed of a keyboard, a mouse, a microphone, and the like. Further, the output unit 106 is composed of an LCD (Liquid Crystal Display), a speaker, or the like.

Here, in the present specification, the processing performed by the computer according to the program does not necessarily have to be performed in chronological order in the order described as the flowchart. That is, the processing performed by the computer according to the program also includes processing executed in parallel or individually (for example, parallel processing or processing by an object).

Further, the program may be processed by one computer (processor) or may be distributed processed by a plurality of computers.

Further, in the present specification, the system means a set of a plurality of components (devices, modules (parts), etc.), and it does not matter whether or not all the components are in the same housing. Therefore, a plurality of devices housed in separate housings and connected via a network, and a device in which a plurality of modules are housed in one housing are both systems. ..

The embodiment of the present technology is not limited to the above-described embodiment, and various changes can be made without departing from the gist of the present technology.

Further, each step described in the above-mentioned flowchart can be executed by one device or can be shared and executed by a plurality of devices.

Further, when a plurality of processes are included in one step, the plurality of processes included in the one step can be executed by one device or shared by a plurality of devices.

Further, the effects described in the present specification are merely examples and are not limited, and other effects may be obtained.

The present technology can have the following configurations.

<1>
Process-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and predetermined processing is performed in the related table provided by including it in the data of the upper layer above the physical layer. A generator that generates transmission data that includes the index associated with related information in the physical layer data,
A transmission device including a transmission unit that transmits the transmission data.
<2>
The generation unit generates transmission data including the index and an area code representing an area for performing the output processing according to the processing-related information associated with the index in the data of the physical layer. 1> The transmitter according to 1.
<3>
In the related table, the transmission device according to <1>, wherein the index is associated with the processing-related information and an area code representing an area in which the output processing should be performed according to the processing-related information.
<4>
The transmission device according to any one of <1> to <3>, wherein the generation unit includes the related table in the data of the upper layer and generates transmission data including the index in the data of the physical layer.
<5>
The transmitting device according to any one of <1> to <3>, wherein the related table is provided from the server to the receiving side.
<6>
The transmission device according to any one of <1> to <5>, wherein the transmission unit transmits the transmission data of FDM or TDM.
<7>
Process-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and predetermined processing is performed in the related table provided by including it in the data of the upper layer above the physical layer. To generate transmission data that includes the index associated with related information in the physical layer data,
A transmission method including transmitting the transmission data.
<8>
Processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and a related table that acquires the related table provided by including it in the data of the upper layer above the physical layer. Acquisition department and
A receiving unit that receives transmission data including an index associated with predetermined processing-related information in the physical layer data in the related table, and a receiving unit.
An index acquisition unit that acquires the index included in the physical layer data from the transmission data, and an index acquisition unit.
A receiving device including a processing execution unit that executes the output processing according to the processing-related information associated with the index included in the data of the physical layer in the related table.
<9>
The transmission data includes the index and an area code representing an area for performing the output processing according to the processing-related information associated with the index in the data of the physical layer.
The index acquisition unit acquires the index and the area code included in the data of the physical layer, and obtains the index and the area code.
When the receiving device is located in the area represented by the area code included in the data of the physical layer, the processing execution unit associates the receiving device with the index included in the data of the physical layer in the related table. The receiving device according to <8>, which executes the output processing according to the processing-related information.
<10>
In the related table, the index is associated with the processing-related information and an area code representing an area in which the output processing should be performed according to the processing-related information.
When the receiving device is located in the area represented by the area code associated with the index included in the data of the physical layer in the related table, the processing execution unit is said to be in the related table. The receiving device according to <8>, which executes the output processing according to the processing-related information associated with the index included in the data of the physical layer.
<11>
The transmission data includes the related table in the data of the upper layer and the index in the data of the physical layer.
The receiving device according to any one of <8> to <10>, wherein the related table acquisition unit acquires the related table included in the data of the upper layer from the transmission data.
<12>
The receiving device according to any one of <8> to <10>, wherein the related table acquisition unit acquires the related table from a server.
<13>
The receiving device according to any one of <8> to <12>, wherein the receiving unit receives the transmission data of FDM or TDM.
<14>
Processing-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and the related table provided by being included in the data of the upper layer above the physical layer is acquired. ,
Receiving transmission data including the index associated with the predetermined processing-related information in the physical layer data in the related table
Acquiring the index included in the data of the physical layer from the transmission data,
A receiving method including executing the output process according to the process-related information associated with the index included in the data of the physical layer in the related table.

11 Transmitter, 12 Receiver, 13 Output device, 14 Server, 21 Upper layer processing unit, 22 Physical layer processing unit, 31 Upper layer data generation unit, 32 Related table generation unit, 41 Control information generation unit, 42 Channel code Chemical unit, 43 IFFT calculation unit, 44 GI addition unit, 45 transmission unit, 51 physical layer processing unit, 52 upper layer processing unit, 53 storage unit, 54 processing index information acquisition unit, 55 processing execution unit, 61 tuner, 62 ADC , 63 Orthogonal demodulation unit, 64 FFT calculation unit, 65 Control information acquisition unit, 66 Channel decoding unit, 71 DEMUX, 72 Upper layer data processing unit, 101 bus, 102 CPU, 103 ROM, 104 RAM, 105 hard disk, 106 output Unit, 107 input unit, 108 communication unit, 109 drive, 110 input / output interface, 111 removable recording medium

Claims (5)

Process-related information related to output processing that outputs an alarm on the receiving side is registered in association with the index, and predetermined processing is performed in the related table provided by including it in the data of the upper layer above the physical layer. A generator that generates transmission data that includes the index associated with related information in the physical layer data,
It is provided with a transmitter for transmitting the transmission data.
In the related table, the transmission device in which the processing-related information and the area code representing the area in which the output processing should be performed according to the processing-related information are associated with the index. The generation unit is claimed to generate transmission data including the index and an area code representing an area for performing the output processing according to the processing-related information associated with the index in the data of the physical layer. Item 1. The transmitting device according to item 1. The transmission device according to claim 1, wherein the generation unit includes the related table in the data of the upper layer and generates transmission data including the index in the data of the physical layer. The transmitting device according to claim 1, wherein the related table is provided from the server to the receiving side. The transmission device according to claim 1, wherein the transmission unit transmits the transmission data of FDM or TDM.

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